Bottle-break ing fire-extinguisher



- (No Model.)

A. M. GRANGER.

BOTTLE BREAKING FIRE EXTINGUISHER. No. 248,733.

Patentd Oct.- 25,1881.

MIMI Ill/ n uv PETERS, PholvLnlwgraphcv. Wmhmglmv. vv (7 Unrran S'rares PATENT @rrrcra ALMON M. GRANGER, OF BOSTON, MASSACHUSETTS.

BOTTLE-BREAKING FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 248,733, dated October 25, 1881,

Application filed February 17, 1881.

To all whom it may concern Be it known that I, ALMON M. GRANGER, of Boston, in the county of Sufi'olk and State of Massachusetts, haveinven ted a certain newand useful Improvement in Bottle-Breaking Fire- Extinguishers, ot'whieh the followingis a specification.

My invention relates to the extinguisher for which was granted to me Letters Patent No. 233,235, dated October 12, 1880. In that extinguisher the bottle-breakii'ig device is actuated by a screw-spindle projecting through the bottom ofthe extinguisherand passing through a stuffing-box,-:1nd toreach the stuffing-box t'or rcpacking it the spindle and the plug in which the stutiing-box is formed must be removed from the extinguisher.

The object of this invention is to provide for removing the old packing and rep'acking .the stuffing-box by simply unscrewing the gland of the stuflingbox and taking out the spindle and gland, leaving the plug, in which is the stuffing-box, in its place; and theinvention consists in a novel construction and arrangement of parts whereby this is rendered possible.

In the accompanying drawings, Figure 1 represents a vertical section ot'an extinguisher embodying myinvention; Fig.2 represents a similar section of the lower portion thereof upon alarger scale, and Fig. 3 is adetail view, illustrating a modification of the invention.

Similar letters of reference designate corresponding parts in all the figures.

A designates the body of the extinguisher, composed of copper or other suitable material, and having a dome-shaped or convex head or top, and a concave bottom, A.

B designates the discharge-pipe, and B a hose-connection, to which a flexible dischargehose is to be attached.

0 designates the bottle-holder, and D a bottom piece, in which the holder is detachably secured so that the parts may be readily separated to remove the fragments of a broken bottle and to insert a new one.

The bottle-breakin g device here shown eonsists of a nut, E, internally screw-threaded and working in the top of a socket, D, formed in the bottom piece, D, and at the lower end of the nut is a flange, c of square, polygonal, or other shape, fitting the socket D, whereby the (No model.)

nut is prevented from turning. At the top of the nut E is a point or spur, b, which is adapted to impinge against the bottom or" the bottle 0 when the nut is advanced.

The bottom A of the extinguisher has soldered to it, or otherwise secured in it, aring, F, and the bottom piece, D, fits in said ring and is secured therein by a cap-plate, G. which is screwed into said ring, and is provided with handlesG, whereby it may be turned. A packing, c,-is inserted between the bottom piece, D, and ring F, so as to form a tightjoint.

H designates a plug which is screwed into the bottom piece, D,and is provided with a lip, d, which overlaps the edge of the hole in the cap-plate G. In the plug H is formed a stuffing-box, c, whichis open at the bottom and terminates a little below the top of the plug, and through this stuftingbox passes a spindle or stem, I, which is screw-tln'ezuled to engage with the nut E, and is provided with a hand-wheel, J, whereby it may be turned. Upon the spindle l is a fixed collar,f, which bears against the end of the stuffing-box c, and thereby prevents anylongitudinal in ward movement of the spindle l. The packing in the stuffing-box e is compressed by a gland, K, screwed into the stuffing-box, and is by said gland'forced against a cup-shaped washer, g, which receives the collarf within it, and has its edge bearing upon the end ofthe stuffing-box, as shown most clearly in Fig. 2. The washer g is stationary, and is recessed in its upper side sufficiently to allow the collarf to turn freely within it. By this construction the fibrous packing is prevented from crowding down around the collar and creating friction, and as by the washer the spindle is prevented from moving longitudinally, the turning of the spindle will advance or draw back the nut E, which constitutes the bottle-breaking device.

In order to repack the stutting-box the gland K is unscrewed, and the spindle I unscrewed from the nut E and drawn out, removing the washer g and drawing the old packing all out of the stufting-box. are then reinserted, and after the packing is placed around the spindle the gland 1C is screwed down to compress the packing. This, it is obvious, may all be done without taking out or loosening the plug H. D

The spindle and washer In lieu'of the cup-shaped washer g the top portion of the stuflingbox e, in which fits the collarf, might be somewhat smaller in diameter than the remainder of the stufling-box, as shown in Fig. 3, thus forming a shoulder, h, upon which a flat washer, 'i, may rest.

What I claim as my invention, and desire to secure by Letters Patent, is-- 1. In a bottlebreaking fire-extinguisher, the combination of the bottom piece,D,of the bottle-holder, the movable nut E, the plug II, screwed into said bottom piece and having a stuffing-box extending through its lower end, the spindle I, for actuating said nut, provided with a collar, f, a washer in said stuffing-box and operating substantially as and for the pur- 25 pose specified.

ALMON M. GRANGER. Witnesses:

FREDK. HAYNES, A. (J. 121313. 

